Pathogens And Their Vectors : Infectious Diseases

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Pathogens and their vectors can now move further, faster and in greater numbers than as documented in the past. Infectious diseases have been the major killers of humans. It is only within the last century that they have been replaced by chronic diseases and injuries as primary killers in the United States. Worldwide, infectious diseases still account for 25 percent of all deaths. The major advances in infectious disease control to date have been through protection of food and water and through immunizations. New infectious diseases could spread only as fast and far as people could walk. Then as fast and far as horses could gallop and ships could sail. The last five centuries have seen more new diseases than ever before becoming potential pandemics. The current reach, volume and speed of travel are unprecedented, so that human mobility has increased in high-income countries by over 1000-fold since 1800. Aviation, in particular, has expanded rapidly as the world economy has grown, though worries about its potential for spreading disease began with the advent of commercial aviation. The efficiency, speed and reach of modern transport networks puts people at risk from the emergence of new strains of familiar diseases, or from completely new diseases. Because of this, the global growth of economic activity, tourism and human migration has led to ever more cases of the movement of both disease vectors and the diseases they carry (Tatem, A., Rogers, D., & Hay, S., 2006). To that being said, we need to understand in depth the mode of transmission when it comes to infectious diseases. And as well how each link can be manipulated, relative to the spread of the disease. An infectious disease is any microorganism that can cause a disease su... ... middle of paper ... ...essen the spread of germs. You can also cover your mouth and nose with a tissue when coughing or sneezing, dispose of tissue straight away and then perform hand hygiene. Performing routine cleaning of surfaces with detergent and water is an effective way of removing germs from surfaces. Gloves are sometimes used in education and care services to provide a protective barrier against germs (“Breaking the chain of infection”, 2013). Transmission in the chain of infection may be broken when the infectious agent is eliminated, inactivated or cannot exit the reservoir, the portals of exit are contained through safe infection control practices, the transmission between objects or people does not occur due to barriers and safe infection control practices, the portals of entry are protected, other persons receiving health care are not susceptible (“Chain of Infection”, 2007).
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